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Section
1
Substance
Trade Names
Synonyms
|
Lead
Chromate CHROMIC
ACID, LEAD(2) SALT; LEAD CHROMATE(VI); CHROME YELLOW; KING'S YELLOW; LEIPZIG YELLOW;
PARIS YELLOW; PLUMBOUS CHROMATE; NATURAL CROCOITE; COLOGNE YELLOW; LEAD(VI) CHROMATE;
CHROMIC ACID (H2CRO4), LEAD(2) SALT (1:1); LEAD CHROMATE (VI) (PBCRO4); LEAD CHROMATE
(PBCRO4); LEAD CHROMIUM OXIDE (PBCRO4); CRO4PB; OHS12580; RTECS GB2975000 |
Chemical
family | Inorganic,
salt | | Creation
date | October
19, 1984 | | Revision
Date | March
12, 1998 | 
Section
2
Lead Chromate | v |
| CAS
Number | 7758-97-6 |
| EC
Number (EINECS) | 231-846-0 |
| Percentage | 100.00 |
Section
3
NFPA
Rating (0-4) |
Health=3, Fire=0, Reactivity=0 | | EC
Classification (assigned) | Reproductive
Toxin category 1
Carcinogen category 3
Reproductive Toxin category 3
N Dangerous for the environment R
33-40-50/53-61-62
EC classification may be inconsistent with independently
researched data | | Emergency
Overview | * |
| Color | Yellow
to orange | | Physical
description | Crystals,
powder | | Major
health hazards | Respiratory
tract burns, skin burns, eye irritation, allergic reactions, cancer hazard (in
humans) | | Physical
hazards | Dust/Air
mixture may ignite or explode
| | Potential
health effects | * |
| Inhalation: | * |
| Short-term
exposure | Burns,
mettalic taste, nausea, stomach pain, tingling sensation, coma |
| Long-term
exposure | Liver
and nerve damage, cancer | | Skin
contact: | ** |
| Short-term
exposure | Allergic
reactions, burns | | Long-term
exposure | Allergic
reactions, burns | | Eye
contact: | * |
| Short-term
exposure | Irritation,
tearing | | Long-term
exposure | Irritation,
tearing | | Ingestion: | * |
| Short-term
exposure | Metallic
taste, vomiting, digestive disorders | | Long-term
exposure | Nerve
damage
| | Carcinogen
status | * |
| OSHA | N |
| NTP | Y |
| IARC | Y |
Section
4
Inhalation
|
When safe to enter area, remove from exposure.
Use a bag valve mask or similar
device to perform artificial respiration (rescue breathing), if needed.
Keep
warm and at rest.
Get medical attention immediately. |
| Skin
contact | Remove
contaminated clothing, jewelry, and shoes immediately.
Wash with soap or
mild detergent and large amounts of water until no evidence of chemical remains
(at least 15-20 minutes).
Get medical attention, if needed. |
| Eye
contact | Wash
eyes immediately with large amounts of water or normal saline, occasionally lifting
upper and lower lids, until no evidence of chemical remains.
Get medical
attention immediately. | | Ingestion | If
vomiting occurs, keep head lower than hips to help prevent aspiration.
If
person is unconscious, turn head to side.
Get medical attention immediately. |
| Antidote | Dextrose/water,
intravenous; mannitol solution, intravenous; dimercaprol, intramuscular; calcium
disodium edetate/procaine, intramuscular; penicillamine, oral. dimercaprol, intramuscular. |
| Note to Physician | For
inhalation, consider oxygen.
For ingestion, consider gastric lavage, consider
oxygen. |
Section
5
Fire & explosion hazards |
Negligible fire hazards | Extinguishing
Media | Regular
fires: dry chemical, carbon dioxide, water, regular foam.
Large fires: Use
regular foam or flood with fine water spray. | Fire
Fighting | Move
container from fire area if it can be done without risk. |
Section
6
Water release |
Subject to California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition
65).
Keep out of water supplies and sewers. | | Occupational
release | Do
not touch spilled material.
Stop leak if possible without personal risk.
Small spills: Absorb with sand or other non-combustible material. Collect
with absorbent into suitable container. Small dry spills: Collect spilled material
in appropriate container for disposal. Move containers away from spill to a safe
area.
Large spills: Dike for later disposal. Keep unnecessary people away,
isolate hazard area and deny entry. |
Section
7
Store and handle in accordance with all current regulations and standards. Keep
separated from incompatible substances. |
Section
8
Exposure limits |
LEAD CHROMATE:
If any employee is exposed to lead for more than 8 hours per
day, use the following formula for the maximum permissible limit (in ug(Pb/m3):
400 divided by hours worked in the day.
50 ug(Pb)/m3 OSHA TWA 8 hour(s)
30 ug(Pb)/m3 OSHA action
level 8 hour(s)
0.1 mg(CRO3)/m3 OSHA ceiling
0.05 mg(Pb)/m3 ACGIH TWA
0.012 mg(Cr)/m3 ACGIH TWA
0.10 mg(Pb)/m3 NIOSH recommended TWA
0.001 mg(Cr(VI))/m3
NIOSH recommended TWA
AGS MAK 4 times/shift
MEASUREMENT
METHOD:
Particulate filter; Nitric acid/Hydrogen peroxide;
Atomic absorption
spectrometry; NIOSH III # 7082, Lead Compounds
MEASUREMENT
METHOD: Particulate filter; Reagent; Visible spectrophotometry; NIOSH III # 7600,
Hexavalent Chromium | | Ventilation | Provide
local exhaust or process enclosure ventilation system.
Ensure compliance
with applicable exposure limits. | Eye
Protection | Wear
splash resistant safety goggles with a faceshield. Provide an emergency eye wash
fountain and quick drench shower in the immediate work area. |
| Clothing | Wear
appropriate chemical resistant clothing. | | Gloves | Wear
appropriate chemical resistant gloves.
OSHA REGULATED SUBSTANCES: U.S. OSHA
29 CFR 1910.1025. | | Respirator | The
following respirators and maximum use concentrations are drawn from NIOSH and/or
OSHA.
Measurement Element:
Chromium (Cr)
At any detectable concentration
-
Any self-contained breathing apparatus that has a full facepiece and is
operated in a pressure-demand or other positive-pressure mode.
Any supplied-air
respirator with full facepiece and operated in a pressure-demand or other positive-pressure
mode in combination with a separate escape supply.
Escape -
Any air-purifying respirator with a full facepiece
and a high-efficiency particulate filter.
Any appropriate escape-type, self-contained
breathing apparatus.
For Unknown Concentrations or Immediately Dangerous to
Life or Health -
Any supplied-air respirator with full facepiece and operated
in a pressure-demand or other positive-pressure mode in combination with a separate
escape supply.
Any self-contained breathing apparatus with a full facepiece. |
Section
9
Physical state |
Solid | | Color
| Yellow
to orange | | Physical
form | Crystals,
powder | | Odor | Not
available | | Molecular
weight | 323.19 |
| Molecular
formula | PB.CR-04 |
| Boiling point | Decomposes |
| Melting point | 1551
F(844 C) | | Vapour
pressure | Not
applicable | | Vapour
density(air=1) | Not
applicable | | Specific
gravity (water = 1) | 6.12
@15 C | | Density | Not |
| Water solubility | Not
applicable | | Ph | Not
applicable | | Volatility | Not
applicable | | Odour
Threshold | Not
available | | Evaporation
rate | Not
applicable | | Co-efficient
of water/oil distribution | Not
available | | Solvent
solubility | Soluble:
acids, fixed alkali hydroxide solutions, dilute nitric acid
Insoluble: acetic
acid, ammonia |
Section
10
Reactivity |
Stable at normal temperature and pressure. | | Conditions
to avoid | Avoid
heat, flames, sparks and other sources of ignition. Avoid generating dust.
Keep out of water supplies and sewers. | | Incompatibilities | combustible
materials, cyanides, metals
LEAD CHROMATE:
ALUMINUM, DINITRONAPHTHALENE:
Forms ignitable mixture.
AZO-DYESTUFFS: Possible violent explosion.
1-(4'-CHLORO-2'-NITROBENZENEAZO)-2-HYDROXYNAPHTHALENE:
Possible violent explosion.
1-(2',4'-DINITROABENZENEAZO)-2-HYDROXYNAPHTHALENE:
Possible violent explosion.
FERRIC FERROCYANIDE: Forms friction sensitive
mixture.
SULFUR: Forms pyrophoric mixture.
TANTALUM: Forms pyrotechnic
mixture. | | Hazardous
decompositions | Thermal
decomposition products: oxides of lead, chromium compounds |
| Polymerization | Will
not polymerize |
Section
11
LEAD CHROMATE |
* | | Toxocity
data | >12
gm/kg oral-mouse LD50; 156 mg/kg intraperitoneal-guinea pig LD75; 11250 mg/kg/90
day(s) continuous oral-dog TDLo | | Carcinogen
status | NTP:
Known Human Carcinogen;
IARC: Human Inadequate Evidence, Animal Sufficient
Evidence, Group 2B (Lead and inorganic lead compounds), Human Sufficient Evidence,
Animal Sufficient Evidence, Group 1 (Hexavalent chromium compounds);
ACGIH:
A2 -Suspected Human Carcinogen;
TRGS 905: K 3 An excess risk for lung and
sinonasal cancer has been reported in workers in the chromate production, chromate
pigment production and chromium plating industries.
Lead chromate and derived
pigments have been tested by intrabronchial implantation in rats without producing
a significant increase in the incidence of tumors.
Lead chromate and derived
pigments have also been tested in rats by subcutaneous and intramuscular injection,
producing malignant tumors at the site of injection and, in one study, renal carcinomas.
A study by intrapleural administration to rats could not be evaluated.
No
increase in tumor incidence was observed when lead chromate was administered intramuscularly
to mice. | | Skin
contact: | * |
| Acute
exposure | LEAD
CHROMATE: Skin contact may produce skin lesions (chrome ulcers) which are painless
but slow to heal, and produce depressed scar tissue | | Chronic
exposure | LEAD
CHROMATE: Sensitization dermatitis accompanied by eczema is common. |
| Eye contact: | * |
| Acute
exposure | LEAD
CHROMATE: Particulate in the eye may cause irritation, lacrimation, and conjunctivitis. |
| Chronic exposure | LEAD
CHROMATE: Conjunctivitis may occur | | Ingestion | * |
| Acute
exposure | LEAD
CHROMATE: Ingestion may cause metallic taste, intense thirst, abdominal pain,
vomiting, gastrointestinal disturbances, and shock.
Death may result from
uremia. | | Chronic
exposure | LEAD
CHROMATE: Chronic ingestion may cause lead poisoning with facial pallor, a 'lead
line' in the gums, mild jaundice, anemia, an excessive concentration of lead in
the urine and blood, and peripheral neuropathy resulting in a condition known
as "wrist drop". |
Section
12
Section
13
Hazardous Waste Number(s): D008.
Dispose of in accordance with U.S. EPA 40
CFR 262 for concentrations at or above the Regulatory level.
Regulatory level
- 5.0 mg/L. Hazardous Waste Number(s): D007.
Dispose of in accordance with
U.S. EPA 40 CFR 262 for concentrations at or above the Regulatory level.
Regulatory
level- 5.0 mg/L. in accordance with all applicable regulations. |
Section
14
Land transport ADR/IRD |
No classification assigned | | Air
transport AITA/ICAO | No
classification assigned | | Maritime
transport IMDG | No
classification assigned |
Section
15
US Regulations | *
| | TSCA
Inventory status | Y |
| TSCA 12(b)
Export notification | Not
listed | | CERCLA
Section 103 40CFR302.4 | N |
| SARA Section
302 40 CFR 355.30 | N |
| SARA Section
304 40 CFR 355.40 | N |
| SARA Section
313 40 CFR 372.65 | Y
LEAD COMPOUNDS
Chromium compounds | SARA
Hazard categories,
SARA Sections 311/312 40CFR370.21 | ACUTE:
Y
CHRONIC: Y
FIRE: N
REACTIVE: N
SUDDEN RELEASE: N |
| OSHA Process
Safety 29CFR1910.119 | N |
| State regulations | * |
| California
proposition 65 | Y
Known to the state of California to cause the following:
LEAD COMPOUNDS
Cancer (Oct 01, 1992)
Hexavalent Chromium Compounds
Cancer (Feb 27, 1987) |
| European
regulations | * |
| EC Number
(EINECS) | 231-846-0 |
| EC
Risk and safety phrases | R
33 Danger of cumulative effects.
R 40 Possible risks of irreversible effects.
R 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in
the aquatic environment.
R 61 May cause harm to unborn child.
R 62 Possible
risk of impaired fertility.
S 45 In case of accident or if you feel unwell,
seek medical advice immediately (show the label where possible).
S 53 Avoid
exposure - obtain special instructions before use.
S 60 This material and/or
its container must be disposed of as hazardous waste.
S 61 Avoid release to
the environment. Refer to special instructions/Safety data sheets. |
Copyright
1990-2005. C-Tech Corporation. All rights reserved. Confidentiality
Notice:
The
Information herein is believed to be correct & is given in good faith, but no
warranty, expressed or implied is made with respect to the product described or
its use. As the use of this product is beyond our control, the user must accept
responsibility for its suitability for any particular application. No statement
may be construed as permission or recommendation for any use that would infringe
on any law, ordinance or patent.
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